Troubleshooting Puzzle: A Furnace with a Flashing Fault Code Jim Johnson January 6, 2020 One Comment In this troubleshooting situation we find ourselves dealing with a gas furnace, and the customer has said that “there is no heat at all.”Read More
How to Diagnose a Thermostatic Expansion Valve Failure Tips for understanding the role of the TXV, and how to service it Bryan Orr January 6, 2020 No Comments This article will hopefully save the lives of a few TXVs and the pocketbooks of some customers.Read More
A Guide to Common Water Heater Issues These solutions can expand your offerings to customers Laura Holton December 23, 2019 No Comments Becoming familiar with the most common problems will mean you can repair water heaters quickly and easily, a skill to add to your repertoire.Read More
A Guide to the Essentials of Building Pressure Understand the entire building as a full ventilation system David Richardson December 16, 2019 No Comments Many professionals are uncomfortable looking beyond the equipment and duct systems they install, which can affect their service to their customers.Read More
To Repair Or Replace Refrigeration Equipment Contractor advice can help store owners make the right decision Joe Marchese December 9, 2019 No Comments If the repair will be more than 50 percent of the cost of a new system, it is generally best to replace it. However, there may be other factors.Read More
Troubleshooting Puzzle: A Walk-in Freezer That’s not Performing Jim Johnson December 9, 2019 No Comments In this month’s troubleshooting situation, you are responding to a restaurant manager’s call for service, and the equipment is a walk-in freezer.Read More
Troubleshooting Puzzle: An Uncomfortable Bedroom Jim Johnson November 11, 2019 No Comments Several attempts have been made to solve the problem of one bedroom that is always too cool during the heating season.Read More
How to Find the Technical HVAC Information You Need Tracking down wiring diagrams and other materials can require patience Joe Marchese November 4, 2019 No Comments Controls offer many benefits to the design and operation of a system, but they can add a level of difficulty when troubleshooting a system failure.Read More
Tracking Down the Cause of Compressor Motor Overheating Voltage imbalance in three-phase system may be elusive reason for the problem John Tomczyk November 4, 2019 No Comments One of the more popular three-phase electrical services that is supplied to medium-size commercial buildings is the Wye or Star configuration transformer.Read More
Letters From Our Readers: November 4, 2019 November 4, 2019 No Comments The article provided valuable information on maintenance and cleanliness issues related to refrigeration equipment in restaurants and c-stores.Read More